Pollution evaluation and health risk assessment of heavy metals in the surface water of a remote island Nijhum Dweep, northern Bay of Bengal

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F22%3A43904547" target="_blank" >RIV/60076658:12520/22:43904547 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.enmm.2022.100706" target="_blank" >https://doi.org/10.1016/j.enmm.2022.100706</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.enmm.2022.100706" target="_blank" >10.1016/j.enmm.2022.100706</a>

Result language

angličtina

Original language name

Pollution evaluation and health risk assessment of heavy metals in the surface water of a remote island Nijhum Dweep, northern Bay of Bengal

Original language description

The current study aimed to evaluate the distribution and status of heavy metal contamination of surface water in the Nijhum Dweep, northern Bay of Bengal. Ten surface water samples were collected to determine the heavy metals and the associated human health risk. The mean concentrations of heavy metals were ranked in descending order of Fe (3.412 mg/L) &gt; Mn (0.3911 mg/L) &gt; Pb (0.3 mg/L) &gt; Co (0.2918 mg/L) &gt; Zn (0.230 mg/L) &gt; Ni (0.1943 mg/L) &gt; Cu (0.167 mg/L) &gt; Cd (0.11 mg/L) &gt; Cr (0.077 mg/L). All the metals except Cd, Pb, and Ni were found uncontaminated, and these three metals influenced the values of heavy metal pollution indices. Heavy metal evaluation index (HEI), heavy metal pollution index (HPI), and Nemerow pollution index (NI) revealed that the surface water of Nijhum Dweep is low to moderately contaminated by these selected heavy metals. The calculated potential ecological risk for the surface water of Nijhum Dweep ranged from 0.88 to 382.93 with a mean value of 189.71, which falls in the moderate ecological risk category. Hazard quotient (HQ) and hazard index (HI) for adults and children showed no non-carcinogenic risk of heavy metals from dermal exposure pathways except station 4 at the south of the Nijhum Dweep due to high Mn concentration. No possible carcinogenic risk was found from the analyzed metals. Several local sources of heavy metals were found during the field investigation, such as small-scale metallurgical activities, oil spills from ships, and fishing trawlers. Again, industrial effluents and agrochemicals from upstream regions also contribute to heavy metal pollution in downstream coastal regions of Bangladesh. Even though the surface water pollution level is low to moderate in the study area, the authority should take proper management and monitoring strategy for future sustainability. © 2022 Elsevier B.V.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

10503 - Water resources

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental nanotechnology, monitoring &amp; management

ISSN

2215-1532

e-ISSN

2215-1532

Volume of the periodical

18

Issue of the periodical within the volume

neuvedeno

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

nestrankovano

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85129677375